🗊Презентация Particle Size Analysis

Категория: Физика
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Particle Size Analysis, слайд №1Particle Size Analysis, слайд №2Particle Size Analysis, слайд №3Particle Size Analysis, слайд №4Particle Size Analysis, слайд №5Particle Size Analysis, слайд №6Particle Size Analysis, слайд №7Particle Size Analysis, слайд №8Particle Size Analysis, слайд №9Particle Size Analysis, слайд №10Particle Size Analysis, слайд №11Particle Size Analysis, слайд №12Particle Size Analysis, слайд №13Particle Size Analysis, слайд №14Particle Size Analysis, слайд №15Particle Size Analysis, слайд №16Particle Size Analysis, слайд №17Particle Size Analysis, слайд №18Particle Size Analysis, слайд №19Particle Size Analysis, слайд №20Particle Size Analysis, слайд №21Particle Size Analysis, слайд №22Particle Size Analysis, слайд №23Particle Size Analysis, слайд №24Particle Size Analysis, слайд №25Particle Size Analysis, слайд №26Particle Size Analysis, слайд №27Particle Size Analysis, слайд №28Particle Size Analysis, слайд №29
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Слайды и текст этой презентации

Слайд 1


Particle Size Analysis
Описание слайда:
Particle Size Analysis

Слайд 2


Particle size
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Particle size

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Particle size from image analysis
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Particle size from image analysis

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Radius of Gyration
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Radius of Gyration

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Diameters can vary, exercise
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Diameters can vary, exercise

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Particle size- equivalent diameters
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Particle size- equivalent diameters

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More diameters Volume diameter – diameter of sphere having same volume Obtained from Coulter counter techniques Surface volume diameter – diameter of sphere having same surface to volume ratio Obtained from permeametry (measuring pressure drop with flow through a packed bed) Mobility diameter – diameter equal to the diameter of a sphere having the same mobility in an electric field as particle
Описание слайда:
More diameters Volume diameter – diameter of sphere having same volume Obtained from Coulter counter techniques Surface volume diameter – diameter of sphere having same surface to volume ratio Obtained from permeametry (measuring pressure drop with flow through a packed bed) Mobility diameter – diameter equal to the diameter of a sphere having the same mobility in an electric field as particle

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Particle Size Analysis, слайд №8
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Слайд 9


Concept of fractal dimension Aerosol particles which consist of agglomerates of ‘primary particles’, (often, combustion generated) may be described using the concept of fractals. Fractals - The relationship between radius r (rgyration usually) of aerosol agglomerates, and the volume of primary particles in the agglomerate can be written:
Описание слайда:
Concept of fractal dimension Aerosol particles which consist of agglomerates of ‘primary particles’, (often, combustion generated) may be described using the concept of fractals. Fractals - The relationship between radius r (rgyration usually) of aerosol agglomerates, and the volume of primary particles in the agglomerate can be written:

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Fractal dimension
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Fractal dimension

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Particle Size Con’t Particle concentration – suspensions in air Particle density – powders What if particles are not all the same size? Size distribution – discrete and continuous Number, volume and mass based distributions Frequency distributions Histogram tricks Single modes – different types of averaging Moments
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Particle Size Con’t Particle concentration – suspensions in air Particle density – powders What if particles are not all the same size? Size distribution – discrete and continuous Number, volume and mass based distributions Frequency distributions Histogram tricks Single modes – different types of averaging Moments

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Particle concentration
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Particle concentration

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Mass and Volume Concentrations
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Mass and Volume Concentrations

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Particle concentrations - powders
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Particle concentrations - powders

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What if we have a mixture of particles of different sizes?
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What if we have a mixture of particles of different sizes?

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Particle Size Analysis, слайд №16
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Continuous particle size distributions
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Continuous particle size distributions

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More continuous size distributions
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More continuous size distributions

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What do they look like?
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What do they look like?

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Frequency distributions
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Frequency distributions

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Particle Size Analysis, слайд №21
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More on size distributions
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More on size distributions

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Spreadsheet tricks
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Spreadsheet tricks

Слайд 24


Number, mass, surface area distributions not the same!
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Number, mass, surface area distributions not the same!

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Describing distributions using a single number, a.k.a. what is average?
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Describing distributions using a single number, a.k.a. what is average?

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Standard shapes of distributions
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Standard shapes of distributions

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Similarity transformation
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Similarity transformation

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Self-preserving size distribution
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Self-preserving size distribution

Слайд 29


Moments of the distribution function
Описание слайда:
Moments of the distribution function

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